Castilleja grisea NatureServe Explorer Species Reports — NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.
ITIS Reports — Castilleja grisea ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.Castilleja grisea is a rare species of Indian paintbrush known by the common name San Clemente Island Indian paintbrush. It is endemic to San Clemente Island, one of the Channel Islands of California
FWS Digital Media Library — The U.S. Fish and Wildlife Service’s National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.The San Clemente Island Indian paintbrush is a perennial herb coated densely in long gray hairs. The highly branching stem grows 40 to 60 centimeters tall and bears linear leaves each a few centimeters long. The inflorescence is made up of layers of bracts one to two centimeters long, gray-green in color at the bases and tipped with greenish yellow. Between the bracts emerge dull yellow pouched flowers. The fruit is a capsule about a centimeter long containing tiny seeds with netted surfaces